In addition to all the other caveats, it's important to remember that Power9's biggest market target is probably highly transactional, tens-of-thousands-of-user

In addition to all the other caveats, it's important to remember that Power9's biggest market target is probably highly transactional, tens-of-thousands-of-users applications (basically, databases of one flavor or another) where how the system handles NUMA, cache coherency and atomics is far more important than how fast it can churn through embarrassingly parallel video encoding tasks.